Air quality in Philadelphia
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
5.7 µg/m³
WHO guideline 15
PM10
6.1 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
5:00 PM
💨
PM2.5 5.7 µg/m³
34 Good
6:00 PM
💨
PM2.5 9.1 µg/m³
38 Good
7:00 PM
💨
PM2.5 13.9 µg/m³
55 Moderate
8:00 PM
💨
PM2.5 15.9 µg/m³
59 Moderate
9:00 PM
💨
PM2.5 16.2 µg/m³
60 Moderate
10:00 PM
💨
PM2.5 15.7 µg/m³
59 Moderate
11:00 PM
💨
PM2.5 14.4 µg/m³
56 Moderate
12:00 AM
💨
PM2.5 12.3 µg/m³
51 Moderate
1:00 AM
💨
PM2.5 10 µg/m³
42 Good
2:00 AM
💨
PM2.5 8.2 µg/m³
34 Good
3:00 AM
💨
PM2.5 7.1 µg/m³
30 Good
4:00 AM
💨
PM2.5 6.4 µg/m³
27 Good
Next few days daily max · US EPA AQI
Wed
💨
Moderate · UV Moderate
60
Thu
💨
Moderate · UV Moderate
51
Fri
💨
Unhealthy for Sensitive Groups · UV Moderate
124
Sat
💨
Unhealthy · UV Moderate
152
Sun
💨
Unhealthy · UV Moderate
152
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain